JPS554771A - Linear tracking player device - Google Patents
Linear tracking player deviceInfo
- Publication number
- JPS554771A JPS554771A JP7829978A JP7829978A JPS554771A JP S554771 A JPS554771 A JP S554771A JP 7829978 A JP7829978 A JP 7829978A JP 7829978 A JP7829978 A JP 7829978A JP S554771 A JPS554771 A JP S554771A
- Authority
- JP
- Japan
- Prior art keywords
- comparator
- recording medium
- voltage
- tracking
- signal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Abstract
PURPOSE: To prevent the damage accident of a recording medium and a signal reproducing element from being generated, by comparing a horizontal tracking angle detection signal with a set value in a comparator and issuing a lift command to an arm lifter when the signal above exceeds the set value.
CONSTITUTION: When the tracking control system is not operated normally due to anomaly occurrence, a horizonral tracking value reaches several or more degrees. A voltage proportional to the tracking angle appears at the output end of differential amplifier 19 according to the increment of the horizontal tracking angle and is compared with a set voltage in comparator 24; and if the voltage above is larger than the set voltage, a pulse is generated from comparator 24. Then, FF 25 is operated, and the output level is inverted and becomes high-level. As a result, actuator 21 is actuated to move arm lifter 22 upward, and tone arm 6 is pressed up to separate stylus 5 from recording medium 1. Thus, the damage accident of the recording medium and the signal reproducing element can be prevented.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7829978A JPS554771A (en) | 1978-06-28 | 1978-06-28 | Linear tracking player device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7829978A JPS554771A (en) | 1978-06-28 | 1978-06-28 | Linear tracking player device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS554771A true JPS554771A (en) | 1980-01-14 |
Family
ID=13658039
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7829978A Pending JPS554771A (en) | 1978-06-28 | 1978-06-28 | Linear tracking player device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS554771A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5870460A (en) * | 1981-10-20 | 1983-04-26 | Matsushita Electric Ind Co Ltd | Pickup arm device |
JPS58114562U (en) * | 1982-01-25 | 1983-08-05 | 株式会社三協精機製作所 | record player |
US8129493B2 (en) | 2009-10-15 | 2012-03-06 | Muroran Institute Of Technology | Aromatic polyester |
-
1978
- 1978-06-28 JP JP7829978A patent/JPS554771A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5870460A (en) * | 1981-10-20 | 1983-04-26 | Matsushita Electric Ind Co Ltd | Pickup arm device |
JPH0135402B2 (en) * | 1981-10-20 | 1989-07-25 | Matsushita Electric Ind Co Ltd | |
JPS58114562U (en) * | 1982-01-25 | 1983-08-05 | 株式会社三協精機製作所 | record player |
US8129493B2 (en) | 2009-10-15 | 2012-03-06 | Muroran Institute Of Technology | Aromatic polyester |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS6467776A (en) | Disk device | |
JPS554771A (en) | Linear tracking player device | |
JPS54155023A (en) | Automatic sound volume reducer | |
JPS54128313A (en) | Magnetic recorder-reproducer capable of automatic setting of proper bias amount | |
JPS5629777A (en) | Coordinate detecting mehod for loading detection type coordinate input device | |
JPS5746353A (en) | Detector for disk deterioration | |
JPS6467775A (en) | Disk device | |
JPS55154415A (en) | Incidental phenomenon recorder | |
JPS56107264A (en) | Controller for quantity of light | |
JPS57167142A (en) | Optical recording and reproducing device | |
JPS5453509A (en) | Magnetic disc apparatus | |
KR870006585A (en) | Drop rod protection system and method insensitive to heavy load loss | |
JPS5641534A (en) | Information recording and regenerative device | |
JPS5529861A (en) | Electrostatic recorder | |
JPS5446439A (en) | Magnetic disc controller | |
JPS644984A (en) | Optical disk device | |
JPS5548817A (en) | Detection method of optimum recording bias for magnetic recording and reproducing unit | |
JPS54134887A (en) | Controlling device for profiling | |
JPS5778621A (en) | Head position control device of magnetic picture recording and reproducing equipment | |
JPS53125003A (en) | Tracking circuit for magnetic recorder-reproducer | |
JPS57181464A (en) | Intermusic detector for record player | |
JPS5666A (en) | Control unit for turntable | |
JPS5380210A (en) | Magnetic tape device | |
JPS5245314A (en) | Magnetic tape device | |
JPS5552526A (en) | Detecting method for optimum recording equalizer characteristic of magnetic recording and reproducing device |